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"java.lang.ClassFormatError: Illegal index in constant pool".... what does it mean?

Posted on 1999-01-28
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Last Modified: 2008-02-26
Hi all!!

This is a strange problem I think. When I run the applet locally, it works perfect, but when I run the applet from the web server, it doesn't with the error message of the subject.
If you can, go to http://flako.cjb.net/calendario.html to see the non-working applet. As I said, if I load in netscape the copy of the www page I have on my hard disk, the applet is executed good

I'd appreciate any help
Thanks a lot in advance

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Question by:skel
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5 Comments
 
LVL 16

Expert Comment

by:heyhey_
ID: 1234854
this is strange error...

what's your development platform (java IDE / compiler ? JDK version ? etc.)

please send me the .java files + compiled .class files at heyhey@nettaxi.com.
probably I can help you ...

best regards
  heyhey
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LVL 1

Expert Comment

by:alvinwang
ID: 1234855
When you ftp your files up to your web server. Did you set Binary mode on ?

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LVL 16

Expert Comment

by:heyhey_
ID: 1234856
hi skel,

what compiler do you use
I still think that this is bad .class file format problem (because of bad / old / non-standard compiler) - .classes downloaded from the net are verified more carefully than local ones.
did you received my e-mail with another version of the .class file ?

regards
  heyhey
0
 

Author Comment

by:skel
ID: 1234857
Heyhey... I used your .class file and it works!! I use Symantec Cafe and in all pages I have compiled applets using it, maybe it has problems with array of constants.

Can it be dependent on the server? I had the applet formerly in a server of my university. I cannot test the new .class file on it yet until next monday. I test your .class file on other server and it worked... so I think in the old server will work too.

You can answer the question now :)
Bye
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LVL 16

Accepted Solution

by:
heyhey_ earned 70 total points
ID: 1234858
thanks
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